data-scientist-role SKILL.md skillA

data-scientist-role from amey-thakur/ai-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add amey-thakur/ai-skills/data-scientist-role@git:20260728.718fec3

Pins git:20260728.718fec3 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
amey-thakur/ai-skills
Path
skills/big-tech-roles/data-scientist-role/SKILL.md
Versions recorded
2
Latest version
git:20260728.718fec3, committed Jul 28, 2026
First version recorded
Jul 18, 2026
Size
3,382 bytes
Repository stars
14
License
MIT

Operate as a product data scientist who frames falsifiable hypotheses, analyzes experiments, and reports results without flattering the launch. Use when asked to design an A/B test, read out an experiment, or turn a metric question into a decision.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Data scientist role

A data scientist earns trust by being the person in the room who says what the
data does not support. The failure mode is not bad math: it is a confident
readout that launders a weak effect into a green light. Method keeps the honesty
in.

Act as a product data scientist who frames every question as a testable
hypothesis, sizes and analyzes the experiment, and reports the effect with its
uncertainty and its caveats before anyone asks.

## Method

1. **Frame the hypothesis before the query.** Write it as a falsifiable
   statement with a direction and a minimum effect that would matter: "the new
   ranker lifts day-7 retention by at least 0.5pp." A query without a hypothesis
   finds a pattern in every noise field.
2. **Demand the decision and the definitions.** Before analyzing, get the metric
   definitions (numerator, denominator, window), the population, the guardrails
   that must not regress, and the decision this feeds. An analysis with no
   decision attached is a hobby.
3. **Power the experiment, then run it.** Compute sample size from the minimum
   detectable effect and baseline variance; fix the randomization unit and
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add amey-thakur/ai-skills/data-scientist-role@sha256:6732c25c1bed6933

The line at the top of this page pins the label git:20260728.718fec3, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_74hjavi4iqcwtctn.svg)](https://markdownregistry.com/a/art_74hjavi4iqcwtctn)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between Jul 18, 2026 and Jul 28, 2026, about one every 10 days.

versioncommittedcommitsizeaudit
git:20260728.718fec3 latest2026-07-28 718fec3 3,382 BA view · diff
git:20260718.7c1285c2026-07-18 7c1285c 3,360 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (3382 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

amey-thakur/ai-skills · 14 stars · license MIT · pushed 2026-09-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_74hjavi4iqcwtctn
GET https://markdownregistry.com/api/v1/resolve?ref=amey-thakur/ai-skills/data-scientist-role
GET https://markdownregistry.com/api/v1/blob/6732c25c1bed6933bd28f345020b6502679325e87f09f8e37cdc25ebf1732d2c

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

More from amey-thakur/ai-skills

ai-skills Cursor rule
amey-thakur/ai-skills · .cursor/rules/ai-skills.mdc · Operate the AI-SKILLS library autonomously, selecting the right skill or prompt for each task.
git:20260721.9534dd9 · audit A · 14 stars
AGENTS.md AGENTS.md file
amey-thakur/ai-skills · AGENTS.md
git:20260728.aa354e7 · audit A · 14 stars
CLAUDE.md CLAUDE.md file
amey-thakur/ai-skills · CLAUDE.md
git:20260721.9534dd9 · audit A · 14 stars
llms.txt@docs llms.txt file
amey-thakur/ai-skills · docs/llms.txt
git:20260728.f55fde9 · audit B · 14 stars
llms.txt llms.txt file
amey-thakur/ai-skills · llms.txt
git:20260906.c8c8420 · audit B · 14 stars
accessibility-review SKILL.md skill
amey-thakur/ai-skills · skills/accessibility/accessibility-review/SKILL.md · Audit a UI for real accessibility, keyboard-first, with concrete failures and fixes rather than checkbox compliance…
git:20260718.7c1285c · audit A · 14 stars
accessible-forms SKILL.md skill
amey-thakur/ai-skills · skills/accessibility/accessible-forms/SKILL.md · Build forms with associated labels, identified errors, clear instructions, and autocomplete attributes. Use when…
git:20260728.fac4544 · audit A · 14 stars
alt-text-writing SKILL.md skill
amey-thakur/ai-skills · skills/accessibility/alt-text-writing/SKILL.md · Write alt text that conveys an image's purpose, marks decorative images empty, and handles functional and complex…
git:20260728.fac4544 · audit A · 14 stars
aria-usage SKILL.md skill
amey-thakur/ai-skills · skills/accessibility/aria-usage/SKILL.md · Use ARIA correctly by preferring native HTML, applying roles/states/properties only where needed, and following known…
git:20260728.fac4544 · audit A · 14 stars
color-contrast SKILL.md skill
amey-thakur/ai-skills · skills/accessibility/color-contrast/SKILL.md · Meet WCAG contrast ratios for text and non-text, never rely on color alone, and verify with tools including in dark…
git:20260728.fac4544 · audit A · 14 stars
focus-management SKILL.md skill
amey-thakur/ai-skills · skills/accessibility/focus-management/SKILL.md · Manage focus on route changes, in modals, and after actions, with visible focus indicators. Use when building…
git:20260728.fac4544 · audit A · 14 stars
keyboard-navigation SKILL.md skill
amey-thakur/ai-skills · skills/accessibility/keyboard-navigation/SKILL.md · Make interfaces fully keyboard-operable with logical focus order, no traps, skip links, and roving tabindex where…
git:20260728.fac4544 · audit A · 14 stars

Every file in amey-thakur/ai-skills

Browse by kind, by grade A, or by owner.